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  // ************************************************************************* //
  //                           avtTetradFileFormat.h                           //
  // ************************************************************************* //
  
  #ifndef AVT_TETRAD_FILE_FORMAT
  #define AVT_TETRAD_FILE_FORMAT
  
  
  #include <avtMTSDFileFormat.h>
  
  // Define this symbol BEFORE including hdf5.h to indicate the HDF5 code
  // in this file uses version 1.6 of the HDF5 API. This is harmless for
  // versions of HDF5 before 1.8 and ensures correct compilation with
  // version 1.8 and thereafter. When, and if, the HDF5 code in this file
  // is explicitly upgraded to the 1.8 API, this symbol should be removed.
  #define H5_USE_16_API
  #include <hdf5.h>
  
  
  // ****************************************************************************
  //  Class: avtTetradFileFormat
  //
  //  Purpose:
  //      A file format reader that reads in Tetrad files for INEEL.  Tetrad
  //      files are written using HDF5.
  //
  //  Programmer: Hank Childs
  //  Creation:   October 4, 2002
  //
  //  Modifications:
  //
  //   Mark C. Miller, Tue May 17 18:48:38 PDT 2005
  //   Added timeState arg to PopulateDatabaseMetaData
  // ****************************************************************************
  
  class avtTetradFileFormat : public avtMTSDFileFormat
  {
    public:
                                 avtTetradFileFormat(const char *);
      virtual                   ~avtTetradFileFormat();
  
      virtual void               GetCycles(std::vector<int> &);
      virtual int                GetNTimesteps(void);
  
      virtual const char        *GetType(void) { return "Tetrad"; };
      virtual void               PopulateDatabaseMetaData(avtDatabaseMetaData *, int);
  
      virtual vtkDataSet        *GetMesh(int, const char *);
      virtual vtkDataArray      *GetVar(int, const char *);
      
      virtual void               GetVars(const char *);
      virtual void               GetTimesteps(const char *);
  
    protected:
      hid_t                      file_handle;
      vtkDataSet                *mesh_for_all_timesteps;
  
      std::vector<std::string>   variables;
      std::vector<std::string>   timesteps;
  
      vtkDataSet                *ConstructMesh(void);
  };
  
  
  #endif
  
  
  